Integrative taxonomy of calcareous sponges (Porifera: Calcarea) from Réunion Island, Indian Ocean Author Klautau, Michelle Author Lopes, Matheus Vieira Author Tavares, Gabriela Author Pérez, Thierry text Zoological Journal of the Linnean Society 2022 2021-05-06 194 671 725 journal article 20247 10.1093/zoolinnean/zlab014 5cbb504f-e207-44fa-ac62-807a6de2f2db 0024-4082 6354284 3E370CBF-7DD1-4E73-BC37-81BF12EDFEED UTE INSULAGEMMAE VAN SOEST & DE VOOGD, 2018 ( FIGS 26–28 ; TABLE 12 ) Synonym: Ute insulagemmae , Van Soest & De Voogd, 2018: 92 . M a t e ri a l e x a m i n e d: U F R J P O R 8 92 5 (= 171109- PAE2 -TP1, Photos:TP6017–6018, TP6051 ). UFRJPOR 8938 (= 171109- PAE2 -TP14, Photo: TP6052 ). UFRJPOR 8943 (= 171109- PAE2 -TP18, Photo: TP 6050 or TP 6057 ). UFRJPOR 8948 (= 171109- PAE2 -TP23, Photo: TP6061 ). Passe de l’Hermitage Reef , La Réunion , Indian Ocean , coll. T . Pérez, 9 November 2017 , 18– 20 m depth . UFRJPOR 8929 (= 171110- ESB2 -TP4, Photos: TP6129–6130). UFRJPOR 8942 (= 171110- ESB 2 -TP 5, Photo: TP6131 ). Portail Caves , La Réunion , Indian Ocean , coll. T . Pérez, 9 November 2017 , 25 m depth . Type locality: Bijoutier Island , Amirantes , Seychelles , Indian Ocean . Colour: This species can have several colours ( Fig. 26 ). Some were mostly pink but white at the base (UFRJPOR 8925; Fig. 26A ) or white with a pink sponge budding (UFRJPOR 8929) or even lemonyellow (UFRJPOR 8938; Fig. 26B ), white but pink near the osculum (UFRJPOR 8942) or completely white (UFRJPOR 8943, 8948; Fig. 26C ). They all become beige in ethanol ( Fig. 26D ). Morphology and anatomy: Sponge with a shape of vase with one single apical osculum surrounded by a crown of trichoxeas and with a delicate sphincter ( Fig. 26A–D ). The crown is supported by T-shape triactines ( Fig. 27A ). Frequently there are sponges budding from another and they keep connected to each other ( Fig. 26D ). Surface smooth, covered by huge longitudinal diactines ( Fig. 27B–D ). These diactines protrude through the surface near the osculum ( Fig. 27A ). The surface is perforated by ostia surrounded by tiny curved triactines, giving a honeycomb appearance to it ( Fig. 27C, D ). The aquiferous system is syconoid ( Fig. 27B ). The cortical skeleton is composed of the giant longitudinal diactines and by the tiny triactines of the ostia ( Fig. 27C ). Below, the articulated tubar skeleton is composed of triactines pointing their unpaired actine to the surface ( Fig. 27D, E ). The subatrial skeleton has triactines and few tetractines and the atrial skeleton has only tetractines ( Fig. 27E ). The atrium is hispid ( Fig. 27E, F ).